Scripts to draw a long rectangular color legend next
to shaded plots.
cbar.gs is the original version -- just the filled rectangles with labels
cbarn has some added features and arguments -- it draws outlines and triangular
endpoints
cbarm will look better if using 30+ colors -- labels are drawn at appropriate intervals

These scrips draw a 10-day meteogram based on NCEP GFS forecast
data, which is accessed through the GrADS Data Server. First run meteogram_subset_GDS.gs with an OPeNDAP-enabled build of GrADS to download the data to a local file. Then run meteogram_GDS.gs to draw the meteogram.

Similar to open
except it checks the list of current files to see if the specified file
has already been opened. If it has been opened, it changes the default file
number to the previously opened file instead of opening the same data file
again.